Dredging-machine.



PATENTED SEPT..4, 1906.

` o. V. POREMAN.

DRBDGING MACHINE. APPLICATION FILED JUNE 13, 1906.

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No. 830,426. 'PATENTED SEPT. 4, 1906. l G. V. POREMAN.

DREDGING MACHINE. APPLICATION FILED JUNE 1a. 190s.

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UNTTED. STATES' PATENT onri'oa.

Specification of Letters Patent.

Patented Sept. 4, 1906.

Application iled June 13, 1906. Serial No. 321,491.

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Be it known that I, CHARLEsV. FOREMAN, a citizen of the United States, and a resident of Thurmont, in the county of Frederick and State of Maryland, have invented certain new and useful Improvements in Dredging- Machines, of which the following is a specification.

My invention is an improvement in dredg-l ing-machines andit'consists in certain novel constructions and combinations of parts, as will be hereinafter described and claimed. l

In the drawings, Figure 1 is a side view of a machine embodying my invention. Fig. 2 is a detail perspective view of the lower portion of the bucket-slide with the guard-cage and brackets for supporting the same applied. Fig. 3 is a detail horizontal section on about line 3 3 of Fig. 1. Fig. 4 is a detail cross-section on about line 4 4 of Fig. 1. Fig. 5 is a detail section on about line 5 5 of Fig..1. Fig. 6 is a detail perspective view of one of the brackets for securing the guard-cage, and Fig. 7 is a detail perspective view of a section of the bucket-carrier.

The beam or arm A may be supported on the body of the dredger in the ordinary manner and extends laterally to support the bucket-slide B, and the carrier and other parts, as will be more fully described. At its outer end the beam A has the side beams A', which are spaced apart and are provided on their inner sides with the guides A2, in which the slide B may be moved longitudinally and tilted slightly, as is desired in raising and lowering the slide and in adjusting it to different positions.

At their outer ends the bars A have the upturned portions A3, to which` are secured the lower ends of the upwardly-projecting bars A, supplied at their upper ends with the bearings A5 for the shaft C, such shaft extending between the opposite bearings A5 and being provided near its outer end with the sprocket-wheels C for the drive-chains D and between the bars A with the sprocketwheels C2 for the chains E of the carrier E, the latter being supplied with buckets E2, as shown in Figs. 1 and 7 ofthe drawings. The shaft C is thus supplied with outer sprocketwheels C and inner sprocket-wheels C2, the sprocket-wheels C2 being in alinement with the guide sprocket-wheels F and G, carried in bearings on the side bars A and arranged in advance of the bucket-slide B and also in alinement with the upper and lower sprocketsprocket-wheels G, as best shown in Figs. 1

and 3 of the drawings. The carrier E extends around the sprocket-wheels C2, F, G, B and B2, its course being illustrated in Fig. 1,

and the back length of the sprocket-chain is, 6 5

prevented from slacking by the sprocketwheels H, as will be understood from Fig. 1 of the drawings, and slack in the carrierchain may be taken up by the form of belttightener illustrated in Fig. 1 in which thel bearings b for the sprocket-wheels B may be adjusted longitudinallyin the bucket-slide by means of the screws b, as will be under-` stood from the said ligure.

It will be noticed that the carrier-chain passes over the sprocket-wheel C2, thence down and under the sprocket-wheels F and G, and on its downward movement the buck-1 ets of the carrier discharge into a rocking chute I, which extends transversely above the beam A in a line between the sprocketwheels F and G and is pivoted at I to a bracket I2', so it may be rocked to discharge'` y to either side, and suitable stops are provided.

They may be lugs t and o" on opposite sides of( the bracket I2 the chute I in either direction.

for limiting the movements of It will be no-` ticed that the location of the sprocket-wheelsl F and G relatively to the bucket-slide andj the rocking chute is such as to permit the discharge of the material from the buckets into the chute I, soit may be delivered there-1 by into scows or other receptacles arranged` along either side of the beamA of the dredgerf Chains I3 may be connected with the chute I,

as shown in Figs. 1 and 5, for tilting it in"V either direction.

For driving the carrier a drive-chain J, operated from any suitable source of power, may turn the shaft J and the latter be provided with sprocket-wheels J 2, connected by chains D with sprocket-wheels C on the shaft C to turn the said shaft, and thus operate the carrier E, as will be understood from the foregoing description. For raising and lowering the bucket-slide any suitable means may be employed, and I have shown for this purpose a line K, extending up over the pulley K', thence down and connected with the bucketslide below the beam A. By this means the bucket-slide may be raised, and it will lower by gravity.

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The sprocket-wheels B2 are supported on a shaft L, mounted in bearings in the side brackets M, secured at their upper ends to the slide B near the lower end of the latter and extending below the said slide and Haring slightly outward toward their lower ends. A guard-cage N, having slide-plates N', is secured to the brackets M. The side plates N are connected at their lower ends by crossrods N2 and lap at their upper ends alongside the brackets M, being bolted thereto at N3 and provided at their upper ends with lugs N4, extending along the opposite edges ofthe brackets M, as4 will be understood from Figs.

1 and 2 ofthe drawings. This cage N is open at its front and rear side for the passage of the carrier, and its side plates may be provided with openings, as shown, to facilitate the passage of material to the carrier as the machine is operated.

I claim- 1. The combination in a dredging-machine with a beam having the side bars spaced apart and provided on the inner sides thereof with guides for a bucket-slide and at the outer ends of said arms with upwardly-projecting` brackets having bearings, outer elevated sprocket-wheels having a shaft mounted in said bearings, the bucket-slide movable in the guides of the beam, the sprocket-wheels supported from the beam between the outer sprocket-wheels and the bucket-slide and arranged one pair adjacent to the bucket-slide and the other pair adjacent to the outer end of the beam, a rocking chute supported from the beam and arranged in a line above the space between said pairs of sprocket-wheels l and below the upper side of the outer elevated sprocket-wheel, a carrier havin buckets and passing over the outer e evated sprocket-wheels, thence down alongside the rocking chute and below the spaced-apart pairs of sprocket-wheels, sprocket-wheels at the opposite ends of the bucket-slide for guiding said carrier, and means for operating the carrier, substantially as set forth.

2. .The combination in a dredging-machine of the beam, the bucket-sli( e, sprocketwheels at the outer end of the beam, sprocketeofiae wheels at the ends of the bucket-slide, a carrier having buckets and passing over the outer sprocket-wheels and around the end sprocket-wheels of the end bucket-slide, a rocking chute between the outer sprocketwheels and bucket-slide, and means below the rocking chute for guiding the carrier from the outer sprocket-wheel to the bucket-slide,

, substantially as set forth.

3. The combination with the beam and the bucket-slide of means at the opposite ends of the bucket-slide for guiding a carrier, means at the outer end of the beam for guiding said carrier, a discharging-chute between said outer guiding means and the bucket-slide, said chute being below the outer guiding means to receive the material discharged from the buckets of the carrier, and means below said chute for directing the carrier in its passage between the outer guiding means and the bucket-slide and the carrier, substantially as set forth.

4. The combination with the bucket-slide of side brackets secured to the opposite sides thereof near its lower end and provided with bearings, and a guard-cage having side plates lapping at their upper ends along the outer sides of the brackets and secured thereto and provided with cross-bars connecting the side plates at their lower ends, and sprocketwheels having their shaft supported in the bearings of the side brackets, a carrier, and means for guiding and operating the carrier, substantially as set forth.

5. The combination in a dredging-machine of a beam, a bucket-slide having sprocketwheels at its opposite ends, sprocket-wheels mounted at the outer end of the beam, a rocking chute arranged between said outer sprocket wheels and the bucket slide, sprocket-wheels arranged in pairs below the rocking chute and between the bucket-slide, and outer sprocket-wheels and the carrier, all substantially as and for the purpose set forth.

CHARLES V. FOREMAN. Witnesses:

JN0. G. JONES, RUDOLPH O. EYLER. 

